Littlepixel: Do you know a U.S. provider of the Syntace VRO or the Satori stem extenders you mentioned? I haven't visited the bike shop yet (just got back from a trip) but I would like to proceed with this mod.
I don't I'm afraid as I'm not in the US! But... we all have the same Google so I'm sure you'll be able to find one. I just got mine today actually and would recommend it over the Syntace. You don't need to hack an old handlebar for one -it comes with it's own purpose made stumpy little bar, and it's a bit more elegant and lighter (and will let you hot-swap bars if need be without having to remove the grips/brakelevers.
Search for 'Satori Aberhallo Stem' or 'Zoom Aberhallo' or possibly look for 'Acor' as this is also screen printed on the component. If you draw a blank - PM me and I'll give you the details of my supplier - I'll happily source one and get it posted to you if need be...